Arthur J. Rees is a past master in the art of fashioning ingenious mystery-detective yarns and The Moon Rock is one of his best. The authors many admirers will find keen enjoyment and many puzzling moments in their endeavors to solve the mystery. Robert Turold had spent his life trying to prove his claim to an ancient title. Yet, when it seems he is about to finally succeed, his body is found in a remote cottage on the Cornish coast, an apparent suicide. Detective Brannert of Scotland Yard, however, suspects murder. His young daughter, his long-time servant, his brother and nephew all have something to gain by his death. This fast-paced detective story unfolds through the tangles of complicated family ties and secrets, suspicious servants, and a mysterious Cornish legend.